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Finding the Fourth Proportional to 2,837.93, 4,256.89 and 890.28

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Solution

The fourth proportional to 2,837.93, 4,256.89 and 890.28 is: 1,335.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,837.93 : 4,256.89 = 890.28 : x
  2. Step 2: Convert to fraction form
    2,837.93/4,256.89 = 890.28/x
  3. Step 3: Cross multiply
    2,837.93x = 4,256.89 × 890.28
  4. Step 4: Simplify right side
    2,837.93x = 3,789,824.03
  5. Step 5: Solve for x
    x = 3,789,824.03/2,837.93
  6. Step 6: Final answer
    x = 1,335.42

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.